describe('events', function () {
    /////////////////////////////
    // SETUP FOR EACH TEST
    /////////////////////////////
    var div, map, group;

    beforeEach(function () {
        div = document.createElement('div');
        div.style.width = '200px';
        div.style.height = '200px';
        document.body.appendChild(div);

        map = L.map(div, {maxZoom: 18, trackResize: false});

        // Corresponds to zoom level 8 for the above div dimensions.
        map.fitBounds(new L.LatLngBounds([
            [1, 1],
            [2, 2]
        ]));
    });

    afterEach(function () {
        if (group instanceof L.MarkerClusterGroup) {
            group.removeLayers(group.getLayers());
            map.removeLayer(group);
        }

        map.remove();
        div.remove();

        div = map = group = null;
    });

    /////////////////////////////
    // TESTS
    /////////////////////////////
    it('is fired for a single child marker', function () {
        var callback = sinon.spy();

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);

        group.on('click', callback);
        group.addLayer(marker);
        map.addLayer(group);

        // In Leaflet 1.0.0, event propagation must be explicitly set by 3rd argument.
        marker.fire('click', null, true);

        expect(callback.called).to.be(true);
    });

    it('is fired for a child polygon', function () {
        var callback = sinon.spy();

        group = new L.MarkerClusterGroup();

        var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);

        group.on('click', callback);
        group.addLayer(polygon);
        map.addLayer(group);

        polygon.fire('click', null, true);

        expect(callback.called).to.be(true);
    });

    it('is fired for a cluster click', function () {
        var callback = sinon.spy();

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        group.on('clusterclick', callback);
        group.addLayers([marker, marker2]);
        map.addLayer(group);

        var cluster = group.getVisibleParent(marker);
        expect(cluster instanceof L.MarkerCluster).to.be(true);

        cluster.fire('click', null, true);

        expect(callback.called).to.be(true);
    });

    describe('after being added, removed, re-added from the map', function () {

        it('still fires events for nonpoint data', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);

            group.on('click', callback);
            group.addLayer(polygon);
            map.addLayer(group);
            map.removeLayer(group);
            map.addLayer(group);

            polygon.fire('click', null, true);

            expect(callback.called).to.be(true);
        });

        it('still fires events for point data', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();

            var marker = new L.Marker([1.5, 1.5]);

            group.on('click', callback);
            group.addLayer(marker);
            map.addLayer(group);
            map.removeLayer(group);
            map.addLayer(group);

            marker.fire('click', null, true);

            expect(callback.called).to.be(true);
        });

        it('still fires cluster events', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();

            var marker = new L.Marker([1.5, 1.5]);
            var marker2 = new L.Marker([1.5, 1.5]);

            group.on('clusterclick', callback);
            group.addLayers([marker, marker2]);
            map.addLayer(group);

            map.removeLayer(group);
            map.addLayer(group);

            var cluster = group.getVisibleParent(marker);
            expect(cluster instanceof L.MarkerCluster).to.be(true);

            cluster.fire('click', null, true);

            expect(callback.called).to.be(true);
        });

        it('does not break map events', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();

            map.on('zoomend', callback);
            map.addLayer(group);

            map.removeLayer(group);
            map.addLayer(group);

            map.fire('zoomend');

            expect(callback.called).to.be(true);
        });

        //layeradd
        it('fires layeradd when markers are added while not on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layeradd', callback);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayer(marker);

            expect(callback.callCount).to.be(1);
        });

        it('fires layeradd when vectors are added while not on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layeradd', callback);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayer(polygon);

            expect(callback.callCount).to.be(1);
        });

        it('fires layeradd when markers are added while on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layeradd', callback);
            map.addLayer(group);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayer(marker);

            expect(callback.callCount).to.be(1);
        });

        it('fires layeradd when vectors are added while on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layeradd', callback);
            map.addLayer(group);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayer(polygon);

            expect(callback.callCount).to.be(1);
        });

        it('fires layeradd when markers are added using addLayers while on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layeradd', callback);
            map.addLayer(group);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayers([marker]);

            expect(callback.callCount).to.be(1);
        });

        it('fires layeradd when vectors are added using addLayers while on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layeradd', callback);
            map.addLayer(group);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayers([polygon]);

            expect(callback.callCount).to.be(1);
        });

        //layerremove
        it('fires layerremove when a marker is removed while not on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layerremove', callback);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayer(marker);
            group.removeLayer(marker);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a vector is removed while not on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layerremove', callback);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayer(polygon);
            group.removeLayer(polygon);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a marker is removed while on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layerremove', callback);
            map.addLayer(group);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayer(marker);
            group.removeLayer(marker);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a vector is removed while on the map', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup();
            group.on('layerremove', callback);
            map.addLayer(group);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayer(polygon);
            group.removeLayer(polygon);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a marker is removed using removeLayers while on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layerremove', callback);
            map.addLayer(group);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayers([marker]);
            group.removeLayers([marker]);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a vector is removed using removeLayers while on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layerremove', callback);
            map.addLayer(group);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayers([polygon]);
            group.removeLayers([polygon]);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a marker is removed using removeLayers while not on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layerremove', callback);

            var marker = new L.Marker([1.5, 1.5]);
            group.addLayers([marker]);
            group.removeLayers([marker]);

            expect(callback.callCount).to.be(1);
        });

        it('fires layerremove when a vector is removed using removeLayers while not on the map with chunked loading', function () {
            var callback = sinon.spy();

            group = new L.MarkerClusterGroup({chunkedLoading: true});
            group.on('layerremove', callback);

            var polygon = new L.Polygon([[1.5, 1.5], [2.0, 1.5], [2.0, 2.0], [1.5, 2.0]]);
            group.addLayers([polygon]);
            group.removeLayers([polygon]);

            expect(callback.callCount).to.be(1);
        });
    });

    /*
    //No normal events can be fired by a clustered marker, so probably don't need this.
    it('is fired for a clustered child marker', function() {
        var callback = sinon.spy();

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        group.on('click', callback);
        group.addLayers([marker, marker2]);
        map.addLayer(group);

        marker.fire('click');

        expect(callback.called).to.be(true);
    });
    */
});